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经营范围
发明名称
FREQUENCY CONTROL CIRCUIT UTILIZING SWITCHING MEANS
摘要
申请公布号
CA821099(A)
申请公布日期
1969.08.19
申请号
CAD821099
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
ROBERT F. SANFORD
分类号
主分类号
代理机构
代理人
主权项
地址
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